Means for securing blades.



B. FLANDERS,

MEANS FOR SECURING BLADES.

PPPPPPPPPPPPPPPPPPPPPPPPP o.

TED STAWENT ornioil.

WARREN B. FLANDERS, 0F PITTSBURGH, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE GOLONIAL TRUST COMPANY, TRUSTEE, 0F PITTSBURGH, PENNSYLVANIA, CORPORATION OF PENNSYLVANIA.

MEANS FOR 'S'ECURUTG' BLADES.

Specification of Letters Patent.

Patented May T4, 19T23.

To all whom it may concern Be it known that T, WARREN B. FLAN- nnns, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have made a new and useful Invention in Means for Securing Blades, of which the following is a specification. i

This invention relates to means for securing blades to the blade carrying element of a fluid translating device, as for example, a turbine.

The invention is illustrated as being adapted for use in connection with the impulse blades of a turbine, whereby the blades are securely fastened to the periphery of the rotor of theturbine.

Tn the drawings: Figure 1 is a sectional view through the-rotor of the turbine, to

which blades are attached in accordance with my invention; Fig. 2 is an enlarged view of a portion of the turbine rotor and a blade secured thereto; Fig. 3 is a detail perspective view of a blade having means for connection to a rotor in accordance with my invention; and Fig. 4 is a slightly modified form of the fastening means.

Referring now to the drawings by numerals of reference, 5 designates a rotor, here shown as comprising a disk, having an I out-turned flange 6 at its periphery; the

upper and lower edges of said flange being provided with slots or grooves 7 and 8.

9 designates a blade of the impulse type having a tail piece 10 with a jaw 11, the upper edge of which is provided with a slot or groove 12, the lower edge of. which is provided with a slot or groove 13. The jaw 11 of the tail iece 10 is adapted to receive the flange 6 of the rotor 5, and the slots 7 and 13 coincide or aline with each other be inserted or sprung in the alined slots 7 and 13, while a spring key or fastening devices, such as the keys 14 and 15, are driven home, a rigidfastening means will be pro vided for securing the blades to the blade carrying elements.

In lBlg. 4, the same general construction for fastening the blades is followed out, as has been heretofore described, but in this form the fastening devices wlll be simply keys'driven home and an additional fastening device is provided in the form of a screw 16, which may or may not be employed as occasion may demand.

Havingthus described my invention, what I claim is:

1. The combination with a blade carrying element and a blade, one of'these being rovided with a jaw and the other a proection to be received by the jaw, alining slots in the jaw and projection and a key for engaging said slots.

2. The combination with a blade carrying element and a blade, one of these being provided with a projection and the other a jaw, slots on opposite edges of the projection, slots in the jaw to aline with those on the projection and keys for engaging the respectlve slots.

3. The combination with a blade carrying element and a blade, one of these being proyided with a. projection and the other a aw, slots in the projection and jaw, fas tening means engaging the slots to lock the lug device extending transversely through the jaw and projection.

In testimony whereof, I have hereunto subscribed my name this 28th day of October, 1910.

WARREN B. FLANDERS.

- Witnesses:

C. W. MGGHEE, B. F. FUNK.

'jaw and projection together and a fastenv 

